Changes in voice-onset time in speakers with cochlear implants

Lane, Harlan; Wozniak, Jane; Perkell, Joseph S.

doi:10.1121/1.410442

Cited by 24 publications

(6 citation statements)

References 8 publications

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“…For all subjects, CaCC durations did not change to the degree that comparing VOTs required a normalizing or correcting factor, as evidenced from the VOT/word duration graphs). As with the subjects in [3], VOT place distinctions did not change with experience.…”

Section: Data Analysis: Stopssupporting

confidence: 48%

“…The VOT study by Lane, Wozniak, and Perkell [3] found that for all of their subjects, CV syllable duration became significantly shorter after implant activation, so that it was impossible to compare pre-and post-activation VOT without using a correction factor. In addition, they found that VOT place distinctions did not change with CI experience.…”

Section: Data Analysis: Stopsmentioning

confidence: 99%

“…Most papers that use postlingually deafened adults with cochlear implants as their subjects focus on post-implant changes in perception; there has been almost no research on the acoustics of speech produced by adult cochlear implant users. The primary acoustic research on the speech production of adult CI users consists of seven papers by Joseph Perkell's research group at MIT, published between 1992 and 1997 [1,2,3,4,5,6,7]. The authors found evidence that the Ineraid four-channel analog cochlear implant provides a sufficient degree of auditory feedback to affect vowel placement and duration, sibilant contrast, VOT and syllable duration, and fundamental frequency.…”

Section: Introductionmentioning

confidence: 99%

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Acoustic analysis of the speech of adults with cochlear implants: A case study

Lowenstein

2001

The Journal of the Acoustical Society of America

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This paper presents acoustic analysis of the speech of three postlingually deafened adults with cochlear implants (CIs), from pre-implant and one, three, and six month post-activation recordings. As neither intonation nor vowels provide physical landmarks to aid articulation, and stops have physical landmarks but require precise articulation and timing, these factors should be most affected by implantation of a CI. Articulatory changes are characterized via acoustic analysis of vowel formants and duration; stop VOT and duration; and sentence F0 peaks and contours. Subject data are analyzed for individual longitudinal trends and implant effects. Trends are compared across subjects and to those found in previous studies. Analysis reveals an overall tendency towards change away from pre-implant values at one month post-activation, and back towards pre-implant values at three months and six months, for vowel duration, F0 and VOT.

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Section: Data Analysis: Stopssupporting

confidence: 48%

Section: Data Analysis: Stopsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Acoustic analysis of the speech of adults with cochlear implants: A case study

Lowenstein

2001

The Journal of the Acoustical Society of America

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“…Another common measure of consonant production is voice‐onset time (VOT), the duration between the start of a consonant and subsequent voiced vowel (i.e., /da/). In hearing impaired listeners, VOT is generally shorter than for NH individuals . Following CI, adults show a correction of the VOT toward normal values .…”

Section: Introductionmentioning

confidence: 87%

“…In hearing impaired listeners, VOT is generally shorter than for NH individuals . Following CI, adults show a correction of the VOT toward normal values . This correction appears rapidly, occurring as early as the first day of activation.…”

Section: Introductionmentioning

confidence: 92%

Control of speech and voice in cochlear implant patients

2019

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Objective Hearing plays an important role in the learning and production of speech, but the benefits of cochlear implantation for such vocal control are unclear. Here, we present a perspective and review of recent work on the control of speech and voice following cochlear implantation. We further discuss insights provided on the mechanisms of normal vocal control and implications for future rehabilitative approaches. Data Sources Peer‐reviewed articles on speech and voice production in cochlear implant patients were identified from PUBMED. Relevant articles were supplemented with selected publications describing normal vocal control mechanisms and behaviors. Review Methods Publications that discussed speech and voice outcomes following cochlear implantation were chosen, with a focus on those presenting measurements of specific speech or voice parameters. Results Recent studies demonstrate that hearing restoration by cochlear implantation has significant effects on many aspects of voice and speech production. These include changes in vocal pitch and loudness, as well as improved control of both vowels and consonants. Despite these improvements, however, the speech of many implant recipients remains abnormal as compared to normal hearing individuals. Such differences likely result from the impoverished auditory feedback provided by the implant. Conclusions Cochlear implants provide valuable insights into the role of hearing in vocal production. Although implants improve vocal production for most patients, there remains considerable room for future study and therapeutic improvement. Laryngoscope, 129:2158–2163, 2019

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Acoustic Analysis of Voice in Cochlear Implant Recipients with Post-Meningitic Hearing Loss

Allegro

Papsin

Harrison

et al. 2010

Cochlear Implants International

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The objective of this study was to evaluate the critical time period between the onset of sensorineural hearing loss and cochlear implantation with respect to normal voice production in children with post-meningitic hearing loss. Acoustic measures of voice production were obtained from ten paediatric cochlear implant recipients with post-meningitic hearing loss. Acoustic measures were obtained utilising the Multi-Dimensional Voice Program and Computerized Speech Laboratory (Kay Elemetrics Corp.). Measures were based on sustained phonation of the vowel /a/. Acoustic parameters included fundamental frequency, short- and long-term frequency perturbation, and short- and long-term amplitude perturbation. Measures of fundamental frequency and short-term frequency and amplitude perturbation were comparable to values of children with normal hearing. Long-term control of frequency was within normal limits for subjects with a period of auditory deprivation of less than four months. Measures of long-term amplitude perturbation were normal for all patients except those with cochlear ossification. Early restoration of auditory feedback with cochlear implantation, the absence of cochlear ossification, residual aided hearing following meningitis, and auditory-verbal therapy were identified as factors in preserving the long-term control of frequency and amplitude in the setting of post-meningitic hearing loss.

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Changes in voice-onset time in speakers with cochlear implants

Cited by 24 publications

References 8 publications

Acoustic analysis of the speech of adults with cochlear implants: A case study

Acoustic analysis of the speech of adults with cochlear implants: A case study

Control of speech and voice in cochlear implant patients

Acoustic Analysis of Voice in Cochlear Implant Recipients with Post-Meningitic Hearing Loss

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